Structural, optical and magnetic properties of nanophase NiWO4 for potential applicationsHitha Harshan, Karathan Parakkandi Priyanka, Aikkara Sreedevi, Anjali Jose and Thomas VargheseEur. Phys. J. B, 91 11 (2018) 287DOI: https://doi.org/10.1140/epjb/e2018-90382-3